OPERATING PROCEDURE

PHOTOS

2. Removing the electronic control P.C. board, the

Photo 3

power monitor receiver P.C. board, SW P.C. board

 

and the terminal block

 

(1)

Remove the horizontal vane, the panel (Refer to 1.) and

 

 

the corner box.

 

(2)

Remove the screw of the conduit cover, and conduit cover.

 

 

(See Photo 2.)

 

(3)

Remove the indoor/outdoor connecting wire.

Switch holder

 

 

(4)

Remove the switch holder from the electrical cover.

 

 

(See Photo 3.)

 

(5)

Remove the screw of the electrical cover, and then the

Screw of the

 

electrical cover. (See Photo 3.)

 

electrical cover.

 

 

(6)Remove the ground wire connected to the indoor electronic control P.C. board from the electrical box.

(See Photo 4.)

Power monitor

receiver

(7) Unhook the power monitor receiver P.C. board holder from

P.C. board holder

the catch. (See Photo 3.)

 

(8) Open the rear cover of the power monitor receiver P.C.

Photo 4

board holder and pull out the power monitor receiver P.C.

Ground wire

board.

(9) Open the switch holder and pull out SW P.C. board.

 

(10) Pull the electronic control P.C. board slightly toward you

Indoor fan motor

from the electrical box, and disconnect TAB3 and all the

connector (CN211)

connectors on the electronic control P.C. board.

Indoor coil thermistor

(LD101 and LD105 are direct-mounted to the electronic

connector (CN112)

control P.C. board.)

 

(11)Pull out the electronic control P.C. board from the electrical box.

(12) Remove the ground wire connected to the heat exchanger

Vane motor

from the electrical box. (See Photo 4.)

connector (CN151)

(13)Unhook the catches of the electrical box, and pull out the electrical box.

(14)Remove the screw of the terminal block cover, and then remove the terminal block cover and the terminal block holder. (See Photo 5)

(15)Remove the terminal block by sliding it.

Photo 5

3.Removing the electrical box

(1)Remove the horizontal vane, the panel (Refer to 1.) and the corner box.

(2)Remove the screw of Conduit cover, and then the indoor/ outdoor connecting wire. (See Photo 2.)

(3)Remove the switch holder and the electrical cover. (See Photo 3.)

(4)Remove the ground wire connected to the heat exchanger from the electrical box. (See Photo 4.)

(5)Disconnect the following connectors on the electronic

control P.C. board; the fan motor connector <CN211>, the indoor coil thermistor connector <CN112>, the vane motor connector <CN151>.

(6)Unhook the catches of the electrical box, and pull out the electrical box.

Screw

26

Page 26
Image 26
Mitsubishi Electronics MSY-A17NA, MSY-A24NA, MSY-A15NA Operating Procedure Photos, Photo Removing the electrical box

MSY-A15NA, MSZ-A09NA, MSZ-A17NA, MSZ-A12NA, MSZ-A24NA specifications

Mitsubishi Electronics is a renowned name in the HVAC (heating, ventilation, and air conditioning) industry, known for innovative, efficient air conditioning solutions. The MSY-A17NA, MSY-A24NA, MSZ-A15NA, MSZ-A24NA, and MSZ-A12NA models exemplify this legacy, offering advanced features and cutting-edge technology. These models cater to various room sizes and requirements, providing comfortable and reliable climate control.

The MSY-A series, including the MSY-A17NA and MSY-A24NA, is designed for both cooling and heating. They feature inverter technology, which optimizes energy use by adjusting compressor speed based on demand, resulting in significant energy savings. The units come equipped with high-performance filters that capture dust and allergens, ensuring cleaner air.

Additionally, the MSY models incorporate a quiet operation mode, making them ideal for residential use. The user-friendly remote control allows for easy adjustments, while the programmable timer adds convenience for scheduling operation times to align with the user's lifestyle. Both models are built with durability in mind, featuring rust-resistant cabinets and high-quality components that extend the lifespan of the unit.

On the other hand, the MSZ-A models, which include the MSZ-A15NA, MSZ-A24NA, and MSZ-A12NA, are wall-mounted indoor units that complement the MSY outdoor models. With their sleek design, they blend seamlessly into any interior decor. The MSZ-A units also utilize inverter technology, enhancing energy efficiency and providing fast cooling and heating performance.

One notable feature of the MSZ-A series is the advanced air purification system, which goes beyond standard filtration. It includes technologies that neutralize odors and harmful gases, creating a healthier indoor environment. The models also come with a quiet operation mode, making them suitable for bedrooms and other quiet spaces.

All Mitsubishi MSY and MSZ models have been built with proactive environmental considerations, complying with high energy efficiency standards. They contribute to lower electricity bills and reduced carbon footprints. Furthermore, their compact design ensures easy installation in various settings without sacrificing performance.

In summary, Mitsubishi Electronics' MSY-A17NA, MSY-A24NA, MSZ-A15NA, MSZ-A24NA, and MSZ-A12NA models stand out in the competitive HVAC market. With features like inverter technology, advanced air purification, and user-friendly controls, these air conditioners deliver outstanding performance, comfort, and reliability while promoting energy efficiency and sustainability.